Nice! You might be able to find a replacement case.
I've seen light seal kits being sold. But the guy who owned our camera store (that had been around since I was a kid til he retired) suggested using the soft side of Velcro, cut into strips. I was in need of a new mirror bumper, worked great for that, but never tried it for seals. Probably a matter of whether you'd want to fool with cutting long strips to fit or get a kit of precut seals.
Tape's a good temporary measure, til you get tired of untaping to load/unload film!